Structural and optical properties of SnO2 nano films by spin-coating method

dc.contributor.authorUysal, Bengü Özuğur
dc.contributor.authorAkkaya Arier, Ümit Özlem
dc.date.accessioned2019-06-27T08:02:12Z
dc.date.available2019-06-27T08:02:12Z
dc.date.issued2015
dc.description.abstractIn this work tin oxide (SnO2) nano films were deposited on glass substrates with different water content using the sol-gel spin-coating method. SnO2 is a wide band gap semiconductor and it belongs to the class of transparent conductive oxides (TCO). The influence of the water content and the heat treatment temperature on the structural and optical properties of the thin films is characterized by X-ray diffractometer (XRD) scanning electron microscope atomic force microscope ultraviolet visible spectrophotometer and spectrophotometer. Crystallite size of nano SnO2 films was controlled by SnCl2:water ratios. The most significant characteristic of nano materials is the increase in surface area as particle size decreases. XRD studies showed that the formation of tetragonal rutil phase was initiated at an annealing temperature close to 450 degrees C. The activation energy of nano SnO2 films for particle growth was calculated. The film has an activation energy of 42.8 kJ/mol and the optical band gap of 3.02-3.35 eV is proportional to the SnCl2:water ratio. The quantum size effect of nano particles was confirmed by the band gap energy shift using ultraviolet visible spectroscopy (UV-vis). SnO2 films have been considered as one of the most promising functional materials due to their wide direct band-gap and excellent electrical and optical properties. Those properties of SnO2 films allow them to be used in electronic and optoelectronic devices like gas sensors solar cells and lithium batteries etc. (C) 2015 Elsevier B.V. All rights reserved.en_US]
dc.identifier.citation29
dc.identifier.doi10.1016/j.apsusc.2015.04.023en_US
dc.identifier.endpage78
dc.identifier.issn0169-4332en_US
dc.identifier.issn1873-5584en_US
dc.identifier.issn0169-4332
dc.identifier.issn1873-5584
dc.identifier.scopus2-s2.0-84938744855en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage74en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12469/572
dc.identifier.urihttps://doi.org/10.1016/j.apsusc.2015.04.023
dc.identifier.volume350en_US
dc.identifier.wosWOS:000359166600015en_US
dc.identifier.wosqualityQ1
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.journalApplied Surface Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSnO2 nanoparticlesen_US
dc.subjectActivation energyen_US
dc.subjectOptical propertiesen_US
dc.subjectSol-gel filmsen_US
dc.titleStructural and optical properties of SnO2 nano films by spin-coating methoden_US
dc.typeArticleen_US
dspace.entity.typePublication

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